Psychology A3 TPB Flashcards
theory of planned behaviour
theories of stress and addiction: theory of planned behaviour
-explain how people can exercise control over behaviour
-intention to change (decision-making)
Ajzen (1991)
-created theory of planned behaviour
- personal attitudes
-individual’s favourable + unfavourable beliefs about behaviours
-example, favourable = i drink because i enjoy it — unfavourable = binge drinking is expensive
-balance of positive and negative judgements
- subjective norms
-‘subjective’ - persons beliefs
-formed by norms of a group, approving + disapproving behaviours
-example, alcoholic “my family are unhappy about me drinking” – less likely to drink (norm of family)
- perceived behavioural control
-how much control we believe we have over behaviour
-perception of resources - external (time), internal (resilience)
-more belief in control over behaviour, more likely to want to change
Hagger et al. (2011)
(evaluation)
-found, personal attitudes, subjective norms and PBC can predict intention to limit drinking
-outcomes are exactly what the theory predicts
a gap - Miller and Howell (2005)
(evaluation)
-can’t account for gap between ‘intention’ and ‘behaviour’
-gambling in teenagers, couldn’t predict reduction from intention
-can’t be used to predict behaviour or interventions
doesn’t consider other variables - Louis et al. (2009)
(evaluation)
-Louis et al., 3 sources to change intention had no influence on healthy/unhealthy eating behaviours
–> stress was actual reasoning - TPB = incomplete